package com.zmj.wkt.config;

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * code is far away from bug with the animal protecting
 * ┏┓　　　┏┓
 * ┏┛┻━━━┛┻┓
 * ┃　　　　　　　┃
 * ┃　　　━　　　┃
 * ┃　┳┛　┗┳　┃
 * ┃　　　　　　　┃
 * ┃　　　┻　　　┃
 * ┃　　　　　　　┃
 * ┗━┓　　　┏━┛
 * 　　┃　　　┃神兽保佑
 * 　　┃　　　┃代码无BUG！
 * 　　┃　　　┗━━━┓
 * 　　┃　　　　　　　┣┓
 * 　　┃　　　　　　　┏┛
 * 　　┗┓┓┏━┳┓┏┛
 * 　　　┃┫┫　┃┫┫
 * 　　　┗┻┛　┗┻┛
 *
 * @author : zmj
 * @description :
 * ---------------------------------
 */
@Component
  public class CorsFilter implements Filter {
      @Override
      public void init(FilterConfig filterConfig) throws ServletException {
                 // TODO Auto-generated method stub
             }

              @Override
      public void doFilter(ServletRequest req, ServletResponse res,
                           FilterChain chain) throws IOException, ServletException {
                 HttpServletResponse response = (HttpServletResponse) res;
                 response.setHeader("Access-Control-Allow-Origin", "*");
                 response.setHeader("Access-Control-Allow-Methods",
                             "POST, GET, OPTIONS, DELETE");
                 response.setHeader("Access-Control-Max-Age", "3600");
                 response.setHeader("Access-Control-Allow-Headers",
                             "Content-Type, x-requested-with, X-Custom-Header, Authorization");
                 chain.doFilter(req, res);
             }

             @Override
     public void destroy() {
                 // TODO Auto-generated method stub
             }
 }
